S912XEG384J3VA Datasheet, PDF (1250/1324 Pages) Freescale Semiconductor, Inc – MC9S12XEP100 Reference Manual Covers MC9S12XE Family

Appendix A Electrical Characteristics
1
CSx
ADDRx
ADDR1
ADDR2
RE
4
5
WE
9
10
11
DATAx
(Write) DATA1
12
13
EWAIT
UDS, LDS
Figure A-14. Example 1b: Normal Expanded Mode — Stretched Write Access
Table A-31. Example 1b: Normal Expanded Mode Timing at 50MHz bus (EWAIT enabled)
No.
Characteristic
- Frequency of internal bus
- Internal cycle time
- Frequency of external bus
V_DD5 = 5.0V
V_DD5 = 3.3V
Symbol
C
2 stretch
cycles
3 stretch
2 stretch
cycles
C
cycles
3 stretch
cycles
Unit
Min Max Min Max
Min Max Min Max
f_i
- D.C. 50.0 D.C. 50.0 - D.C. 25.0 D.C. 25.0 MHz
t_cyc
- 20
∞
20
∞ - 20
∞
20
∞ ns
f_o
- D.C. 16.7 D.C. 12.5 - D.C. 8.33 D.C. 6.25 MHz
1250
MC9S12XE-Family Reference Manual Rev. 1.25
Freescale Semiconductor